[SOLVED] V0.50 MTA-STS policy is missing: STSFetchResult.NONE

This error occurred after an upgrade process on our servers. Find below a step by step we used to fix the problem.

upgrade

  • Login to server via SSH (putty for windows)
  • sudo apt-get update && sudo apt-get upgrade
  • reboot
  • Login to server via SSH (putty for windows)
  • curl -s https://mailinabox.email/setup.sh | sudo bash
    Answer questions

Provision the certificates from Lets Encrypt

  • Select [System] menu (Top Menu)
  • Select TLS (SSL) Certificates
  • Select [Reprovision] button

upgrade again.

  • Login to server via SSH (putty for windows)
  • sudo apt-get update && sudo apt-get upgrade
  • reboot
  • Login to server via SSH (putty for windows)
  • curl -s https://mailinabox.email/setup.sh | sudo bash
    Answer questions
3 Likes